Dalian University of Technology , colloquially known in Chinese as Dagong , is a public research university located in Dalian and Panjin, Liaoning province, People's Republic of China. DUT, previously renowned as one of the Big Four Institutes of Technology, is among China's top universities for engineering and technology. It is also one of the national key universities administered directly under the Ministry of Education of China. Wikipedia.
Dalian University of Technology | Date: 2014-11-26
The present invention provides a difluoroboron dipyrromethene fluorescent probe having a structure represented by the following general formula I, and a production method and an application thereof. Said difluoroboron dipyrromethene fluorescent probe exhibits low background fluorescence, and a rapid and significant fluorescence enhancement up to 100 times after the addition of hypochloric acid. The fluorescent intensity of said fluorescent probe shows a good linear relation with the concentration of hypochloric acid in a nanomole level, and the detection limit thereof is 0.56 nanomole. Said fluorescent probe has good selectivity since it hardly responds to other reactive oxygen species such as H_(2)O_(2), O_(2)^(), TBHP, HO., TBO., ^(1)O_(2 )and NO., and is not interfered by pH in a wide range. Said fluorescent probe can be applied to detect hypochloric acid in living cells.
Dalian University of Technology | Date: 2016-08-03
A wave power generation device, including a power generation assembly, a mooring system, a floating platform, floating towers, control cabins, a connecting member, and anti-sway plates. The floating platform is a square floating box. The power generation assembly includes a swing plate, a hydraulic cylinder, an energy accumulator, a hydraulic motor, a generator, a battery, and a power generation and distribution device. The floating platform includes a main deck. The main deck includes a manhole and a support for supporting the swing plate. The swing plate is connected to the support via a first hinge. One end of the hydraulic cylinder is connected to the swing plate, and another end of the hydraulic cylinder is connected to a floating platform. The mooring system includes four anchor windlasses. A method for operating and maintaining the wave power generation device is also provided.
Dalian University of Technology | Date: 2017-01-19
The present invention provides a carboxylate-bridged binuclear iron-sulfur clusters fluorescent probe having the structure of Formula I. The preparation method comprises the following steps: anthracenylmethanamine and p-methoxycarbonylphenyl isocyanate have an addition reaction to get a substitutional methyl benzoate, which is hydrolyzed to get a corresponding carboxylic acid; react the resulting carboxylic acid with alkali to get carboxylate, and then coordinate with binuclear iron precursor to obtain the fluorescent probe. Compared with the prior art, the invention firstly provides the carboxylate-bridged binuclear iron-sulfur clusters of metal complex which similar to the central structure of bio-enzyme. The metal complex, as a fluorescent probe, has good selectivity to the fluorinion detection. The fluorescence titration experiment is simple and easy to operate and the fluorescence changes are sensitive.
Lu X.-B.,Dalian University of Technology |
Darensbourg D.J.,Texas A&M University
Chemical Society Reviews | Year: 2012
This comprehensive tutorial review focuses on well-defined cobalt complexes that serve as homogeneous catalysts for the production of polycarbonates and cyclic carbonates from the coupling of carbon dioxide and epoxides. Special considerations are given to the mechanistic pathways involved in these processes. © 2012 The Royal Society of Chemistry.
Sun H.,Dalian University of Technology
Nuclear Physics B | Year: 2014
In this work we study the constraints on the anomalous tqγ (q = u, c) couplings by photon-produced leading single top production and single top jet associated production through the main reactions pp→pγp→pt→pW(→ℓνℓ)b + X and pp→pγp→ptj→pW(→ℓνℓ)bj + X assuming a typical LHC multipurpose forward detectors in a model independent effective lagrangian approach. Our results show that: for the typical detector acceptance 0.0015 < ξ1 < 0.5, 0.1 < ξ2 < 0.5 and 0.0015 < ξ3 < 0.15 with a luminosity of 2fb -1, the lower bounds of κtqγ through leading single top channel (single top jet channel) are 0.0130 (0.0156), 0.0218 (0.0206) and 0.0133 (0.01655), respectively, corresponding to Br(t→qγ) ~ 3 × 10 -5. With a luminosity of 200fb -1, the lower bounds of κtqγ are 0.0041 (0.0048), 0.0069 (0.0064) and 0.0042 (0.0051), respectively, corresponding to Br(t→qγ) ~ 4 × 10 -6. We conclude that both channels can be used to detect such anomalous tqγ couplings and the detection sensitivity on κtqγ is obtained. © 2014 The Author.
Han F.-S.,CAS Changchun Institute of Applied Chemistry |
Han F.-S.,Dalian University of Technology
Chemical Society Reviews | Year: 2013
In the transition-metal-catalyzed cross-coupling reactions, the use of the first row transition metals as catalysts is much more appealing than the precious metals owing to the apparent advantages such as cheapness and earth abundance. Within the last two decades, particularly the last five years, explosive interests have been focused on the nickel-catalyzed Suzuki-Miyaura reactions. This has greatly advanced the chemistry of transition-metal-catalyzed cross-coupling reactions. Most notably, a broad range of aryl electrophiles such as phenols, aryl ethers, esters, carbonates, carbamates, sulfamates, phosphates, phosphoramides, phosphonium salts, and fluorides, as well as various alkyl electrophiles, which are conventionally challenging, by applying palladium catalysts can now be coupled efficiently with boron reagents in the presence of nickel catalysts. In this review, we would like to summarize the progress in this reaction. © 2013 The Royal Society of Chemistry.
Dalian University of Technology and Zhuhai Seine Technology Co. | Date: 2016-03-17
A liquid jet head manufacturing method, a method for integrally manufacturing a liquid jet apparatus, a liquid jet head, a printing apparatus and a liquid jet apparatus. The manufacturing method includes: forming multiple pressure-generating members arranged spaced apart on a first substrate; forming, on a first surface of first substrate, pressure chambers corresponding to multiple pressure-generating members, and a common chamber in communication with multiple pressure chambers; forming a transition layer on pressure chambers, and forming a jet orifice plate on transition layer; and forming, on jet orifice plate and transition layer, jet orifices in communication with pressure chambers. When the number of pressure chambers needs to be increased, since pressure chambers are formed on first substrate individually, mechanical strength of first substrate will not be reduced, and during manufacturing process, breakage of first substrate can be avoided, improving yield of liquid jet head, and reducing manufacturing cost.
Dalian University of Technology | Date: 2016-02-10
A method for determining a reduction factor of a bearing capacity of an axial load cylindrical shell structure relates to stability checking of main bearing strength thin-walled members of aerospace and architectural structures. Different from experiment experience-based conventional defect sensitivity evaluating method represented by NASA SP-8007, a depression defect is introduced in a manner of applying a radial disturbance load. First, an influence rule of a depression defect amplitude of a single point to an axial load bearing capacity is analyzed by using numerical values, so as to determine a load amplitude range; then, defect sensitivity analysis is performed on depression defects of multiple points; then, experiment design sampling is performed by using load amplitude values and load position distribution as design variables; and finally, based on optimizing technologies such as an enumeration method, a genetic algorithm and a surrogate model, the most disadvantageous disturbance load of the multiple points that limits the defect amplitude is searched for, and a reduction factor of the bearing capacity of the axial load cylindrical shell structure is determined, so as to establish a more physical method for evaluating the defect sensitivity and the bearing performance of the axial load cylindrical shell structure.
Eco Environmental Energy Research Institute Limite and Dalian University of Technology | Date: 2016-06-01
The present invention provides a method for preparing hydrogen-rich gas by solid organics, including: the solid organic raw materials are heated in pyrolysis reaction device to perform pyrolysis reaction; and the gaseous product generated from the pyrolysis reaction performs gasification with steam in moving bed gasification reaction device to generate hydrogen-rich product. The present invention also provides a system for preparing hydrogen-rich gas by solid organics, including: solid heat carrier grading-dedusting device; pyrolysis reaction device; moving bed gasification reaction device; riser and combustion reactor. The method of the present invention is operated at atmospheric pressure and the technology is simple, which is suitable for the gasification and co-gasification of various high-volatile solid organics, including raw materials containing a relatively large amount of moisture, mineral substance and sulfur content.
Dalian University of Technology | Date: 2016-10-12
The present invention provides a difluoroboron dipyrromethene fluorescent probe having a structure represented by the following general formula I, and a production method and an application thereof. Said difluoroboron dipyrromethene fluorescent probe exhibits low background fluorescence, and a rapid and significant fluorescence enhancement up to 100 times after the addition of hypochloric acid. The fluorescent intensity of said fluorescent probe shows a good linear relation with the concentration of hypochloric acid in a nanomole level, and the detection limit thereof is 0.56 nanomole. Said fluorescent probe has good selectivity since it hardly responds to other reactive oxygen species such as H_(2)O_(2), O_(2)^(-), TBHP, HO, TBO, ^(1)O_(2) and NO-, and is not interfered by pH in a wide range. Said fluorescent probe can be applied to detect hypochloric acid in living cells.